Ments



W. L. GUMPRECHT. COMBINED TYPE WRITING AND CQMPUTING MACHINE.

APPLlfiATlON 1min Nov. 1 I. I914.

PatentedJune 3, 1919.

s SHEETS-SHEET 1.

m'veuTom- ATTORNEY.)

WITNESSES:

W. L GUMPRECHT. COMBINED TYPE WRLTING AND COMPUTING MACHINE.

APPLICATKON FILED NOV. 11. 1914. v 1,305,537. Patented June 3,1919.-

9 SHEETS-SHEET 2.

INVENTOR: WITN ESSES:

zzww BY m FIG. 2.

W. L GUMPRECHT. COMBINED TYPE WRITING AND COMPUTING MACHINE.

Patented June 8, 1919.

9 5 H E E TS- S H E E T 3.

IN vamom BY ATTUBVEY W1L.GUMPRECHT COMBINED TYPE WRITING AND COMPUTINGMACHINE.

APPLICATION FILED Nov.sl.x9r4.

1,305,537. I Patentediune 3, 1919.

I 9 SHEETSSHEET 4.

ATTORNE! INVENTOM W. L. GUMPRECHT. COMBINED TYPE WRITING AND COMPUTINGMACHINE.

APPLlCATlON FILED NOV. H. 191

, r J M mm$ Sa N km N M Q QM P N E T 2% Q J E M M M m g w I M m 0 Q @QMQO Q N W9 mm r9 2% Iv Sw wh m mi m 7%; 7% Q W P wn'u'zssss:

W. L GUMPRECHT.

COMBINED TYPE WRITING AND] COMPUTING MACHINE.

APPLICAUON FILED NOV. [1. I914.

Patented June 3, 1919.

9 SHEETS.SHEET 6.

INVENTO R:

S E S s E ATTORNEY.

GUMPRECHT, CQMBINED TYPE WRLTING AND COMPUTING MACHiNE.

APPLZCATiC aI FILED NOV. H. i914.-

T Pixembed mm 3, 9 SHEETSSHEET 9.

WILLIAM L. cumrnncnr; or nnnrronn comvncrrour;

mnn'rs, To UNDERWOOD conronnrlon or mew YORK.

As'sIGN'oR; BY- MESNE ASSIGN- COMPUTING MACHINE COMPANY, OF NEW YORK, N.Y'., A

comzmnn rrrn-wnrrrne AND c m me iuncmnn,

Specification of Letters-Patent 4 Attache-6 1 filed November 11,1914.Seria1No.871,458.

it may concern;

itlmown that I, 'WILLIAM L. Gone nizonni'a subject of the King of GreatBritain, residingin; Hartford, in the county of Hartford State ofConnecticut, have in:

"ventcd certain new "and useful Improvements in Combined. TyeWriting-and Computing Machinegofwhich thefollowing is aspecinominations.

' tion,

The present invention relates to mechani for computin the number ofmeasures or pieces of selecte values or denominations wh' 10h aggregatean amount expressed in' terms of its total number of units. For example,in'selecting currency with which e a payment, it is desirable tohandleas mak few pieces as possible, and therefore it is of advantage ,to knowin advance how many pieces of the largest convenient denomination, suchas ten dollar bills, can be used, and how many pieces, each, of certainother denominations, such as five and one dollar bills, and smallersilver,

use, not only in dealing with amounts of our- 'rency of'any character,but also dealing with .any amounts capable :of being measured andexpressed interms of'units or multiples of selected denominations.

The inven ionis hereinafter illustrated in connection 1 with a combinedlUnderwood:

thisis merely one adaptation of the invenand; that it may beadvantageously used in connection wit. other computing machines, or as amachinein itself.

In registering amounts it has heretofore been characteristic ofcomputing machines that the amount is registered in the same terms asthose in which it is expressed upon the machine; that is to say, $8, forinstance, would be re 'stered as $8. By means of the present invention,however, $8 may be regls- -tered as one five dollar:piece'plus threeFons/dollar pieces, or in terms of other de- The invention" thereforeinvolves a'mechanism for receiving a plurality of expressions whichamount registered thereon.

The mechanism as hereinafter shown, may

resenting selected measures of diife'rent'deare required in addi:tionthereto. The invention is adaptable to shifting the subtractionposition. conjointly represent an linkages and'key. connections shownnominations, two or'more of which may be set by any numeral key toregister on the bars thenumber of units, each, of the selec'ted.denominations which make up the amount on the numeral key. When theinvention is combined with a typewriter, and the amount to be writtenhas figures in several column positions, the movement of the carriagemay be used in a well known way to select the bars on which the settingsare to be made; two or more bars being selected for eachcolunin positionof the carriage, where the number written in that column is to beexpressed in terms of more than one denomination. j

In order that the numberv of units or multiples of like denominationobtained from amounts successively written or ex resscd, may beindicated, each bar or cquiva ent device may control a separateaccumulator or counter of construction quite similar to that of theaccumulators ordinarily used. in 0b taming the sums of typewrittenamounts in combined chines.

The above and typewriting and computing maother features of the inven-Figure l is a view in sectional side elevat on, taken at the line ll ofFig. 2, of an -Underwood-Hanso n combined typewriting and computingmachine to which the present improvements are applied, the parts beingshown in normal position.

Fig. 2 is a plan view of the computing mechanism taken on the line 22 ofFig. 1.

Fig. 3 is a view, in perspective, taken from the rear, showing thecarriage and connections to the linkages. for setting the com- 'putingmechanism. I Fig. 4 is a perspective view from the rear showing the pinbars and certain of the operating and setting connections for the same.Fig. 5 is a top plan view of the pin-setting linkages and connectionsfor operating the same from the. numeral keys, and for same between theaddition and Fig. 6 is a View in side elevation of, the inFig. .pin barsbeing. also ';.,shown 5, the pins and below the linkages. =7 Fig. 7shows in SldGelGVittlOll, and in nor-Q Patented June 3, 1919.

, and 5 cent denominations respectively, to-

gether with certain parts for actuating the same.

Fig. 8 shows in side elevation, set for subtraction, one of threesimilar bars and operating connections which control the accumulators ofthe $1.00, ten cent and one cent denominations respectively, part of theFig. 6 bar, and of the subtraction bar, being shown behind the same, andthe operating linkages and connections of Fig. 5 being shown in crosssection above the same.

Fig. 9 is a view in side elevation of the bars shown in Fig. 8, theposition of the parts being that assumed when the general opera-tor barhas been advanced to engagement with the subtraction bar.

Fig. 10 is a topplan view of the linkages shown in Fig. 5 together withcertain of the underlying pin bars and key connections, the parts shownin full lines being those actu ated upon depression of the 6" key in theadding operation.

Figs; 11, 12 and 13 are views similar to that of Fig. 10, except thatthe parts shown in full lines are those actuated upon depression of the7, 8, and 9 keys respectively, in the adding operation.

Fig. 14: is a view in side elevation of a part of the subtraction barand one of the pin bars,"showing also the bail for setting the 9 pinsfor subtraction, and certain dogs and levers for setting, holding andshifting the parts.

Fig. 15 is a perspective view ofthe error key and its connections, forerasing at will settings on the register.

Fig. 16 is a perspective view of the shaft on which the dials aremounted, and the means for holding the shaft in true position.

Fig. 17 is a view in side elevation showing the driving connections ofthe zero bar to the shaft shown in Fig. 16.

Fig. 18 is a View in side elevation showing certain details of the dialshaft and tenscarrying mechanism.

In the Underwood combined typewriting and computing machine illustratedin the drawings, alphabet keys 1 and numeral keys 2 operate to depresslevers 3 to actuate bell cranks 4 and thus swing type-bars 5 upwardlyand rearwardly against platen 6,

which is mounted on carriage 7, driven b v 1 the usual spring barrel 8.Fig. 1. A rack 9 on the carriage meshes with a pinion 10 connected to anescapement wheel 11, which cooperates with carriage feeding dogs 12. Thelatter are connected to a universal bar 13 operated by the type-bars 5.The platen may be'moved in the usual way between, case positions -bymeans of a shiftable rail 14 which supports roller 15 carried by theplaten frame 16.

' Pivotally supported'and shiftable to desired computing zone positionsalong a rail 17 on the carriage are two ta ppets 18 and 19. A tooth oneach tappet by engagement with notches at letter-space distance apart ona rail 21, holds the tappets in their'selected positions. Each tappethas a dog 22, which when a tappet is'set, engages and cams upsuccessively each of a number of jacks :23 also set at letter-spacedistance apart. Except when the machine is to be used for computingpurposes, the tappets are below and out of reach of the jacks. \Vhenhowever, the rollers 24, which serve as cams to lift the tappets andmaintain the same in raised position, are swung up by the supportingarms 25 on shaft 26 (see Fig. 3), the dogs '22 are broughtinto the. linewith the jacks; and, as the carriage advances, actuate the jacks todepress rods 21- Springs QS-liold the rolls :21 in effective position,and tapered rolls :29 on the tappet-s insure proper and easy cooperationand movement of the tappets and roll; 24. The dogs 22 have free movementin one direction to permit the jacks to pass the same on the returnmovement of the carriage, and are returned by springs to normalposition-when releasedby the jacks on the carriage return movement. Therolls -24 are of sufiicient length to hold the tappets in efi'ectiveposition through the c0mputing zone. Y

The jacks 23 and rods 27 (see Fig. 3) are shown as in two sets orseries, in each of which their action is similar. The jacks controlledby the tappet 18 are in number equal to the number of decimal columns inthe amounts to be written, and are usually nine.

- The particular machine shown in the drawings, however, is not designedto register or compute in its denominational or .coineindienter orcounter section the coins, -etc., of items over 99, 99; and whentherefore its denominational section is employed, only four of the jackscontrolled by thetappet 18 are of any use. The mechanism set by tappet18 is that used in the usual adding and subtracting of amounts written.and is for the most part already old in thc'Underwood combinedtypewriting and computing ,machine. The mechanism set by the tappet 19concerns the denominational a -cumulators,

new in the'present' invention, and will be hereinafter described indetail.

Each of therods 27 when depressed by the tappet18 rocks one of a seriesof levers 30 having teeth 31, each to engage and lift one of a series oflinkages 32. Each of the linkages 32 has a lug 33 to engage and rock abell crank 34, and each bell crank 31 when rocked, sets a computing pinrack bar 36 for the column represented by the particular jack actuated,the setting being effected by a slight forward movement of the bar dueto the engagementof the bell crank 31 with a I just described. Thedepression or setting of the pins is effected by means of a series 80projection-3501i the bar. The bars 36 at their front ends are providedwith racks 100 engaging pinions 101- which have pawLandratchetconnectionsto dials or computing wheels 102 'having'numbers from *50 t9.

, on their peripheries arranged to be exhibited through asight openingin thecasingof the ctnn'puting mechanism; The-linkages32 invert-theorderef the "jacks and bars, the

'jacksbeing-successively operated from right to left, and thecor-responding dials being arranged from left to right for properrepres'ent'ation of the amounts.-

Computing-pins or.- devices 37,1nin e 1n number,one for each oftheninedigits, are -carried1by-each bar 36 in sockets 37, (see Fig. 6)in whichthey have a normally elevated position, but in which they may bedepressed so as to protrudebelow the bar in a position determined bythe-head 38 of the pin striking a plate 39 on the bar. Theseofdepressible linkages i0, nine in number, arranged pin distance apart atright angles above the pin bars, and which, as shown in 1 and 8, arenormally out falinement with cross rows of-pins, and can therefore onlyset pins in the particular bar 36 which has been set forward by itsjack.to bring its pins directly under the linkages. As shownin-Fig. 6, eachlinkage is comprised of'an upper and a lower reach connected by bellcrank levers, and is normally collapsed so that the "lower orpin-striking reach is above-the plane of the pin heads. The pin "barsareheld in normal unset position against a plate 44: by means ofspring-controlled fingers'l, pivoted at 42 to the frame and bearingagainst shoulders 43 on the pin I bars.

The linkages 40 are operated from the keys 2, and are arranged fromfront to rear so that in the adding operation the 1 keywill operate thefront linkage, the '2 key the next linkage, and so forth; the 9 keyoperating-the rearmost linkage. The keys "have depending thrust arms 45which, when the keys are depressed, engage and rock arms id fast, toshafts 47. There is a shaft 47 for each key, and only one certain shaftis rocked by the same key whether the operation be for addition or.subtraction. The shafts 47 are arranged at'right angles to the linkages40, below the same, and each has also fast thereto a bifurcated arm 48,

which when the parts are set for adding,

engages awrist pin .49 on that linkage 40 whose position in the-order oflinkages from front to rear,i corresponds.to the key de.-

pressed. As theshaftATis rocked, on. depression of the key, the, lower.reach fo'f the linkage engaged by it, depresses or sets the pin whichhas-heen-brought under it,;a1 c l when the key ,isreleased, a suitablespring returns the-linkage and rock shaft and key .to normal position.No linkage .:0; or pm 37 is required for the cipher keybecause noamount. is to .be accumulated-for that key.

In the machine shown in the drawings,

digits and the cipher,,always turn in adding direction only.Qonsequently in registering a subtraction, the amount"written cannot assuch be transferred. to theidials. The transfer is however-in effectmade'by adding, to 'theamount already recordediby the dials, an amount,each column figure ofwhich is the complement of the figure in thecorresponding column of the amount to be subtracted, with nine as thebase or completenumber instead of ten. In thisoperation the cipher maybe considered as complementa'ry to the number nine, and to obtain thecorrect result oneiunit mustbe added to the complementarynumber recordedin'the 'units or cents column." This assumingbthat theregister shows00,000,100 and it e desired to subtract 50' therefrom, the operationwill proceed as follows:

Pins must be set up representing 99,999,-

949. These digits are carried-into their.

respective computing wheels, making them read 99,999,049. -An additionalunit is also added to the,units or left-hand wheel and the carryoverthen operated',thus making the wheels read '00,000,050, -the "f1 of thepreviously in the register of course causing a carryover 'onto thethousands wheel.

In effecting a subtraction, it is "the'refore necessary, before theamount to be subtracted is written, to change the key connections" tothe linkages &0 so that any key operated will setthe pin whichrepresents the numher; complementary to that on the key. It is alsonecessary first to set all of-the 9 pins so that if no digit key isoperated in any particular column, the computing wheel corresponding tothat column will nevertheless' have a nine point revolu-tion.- Havingset all the 9 pins to meet the contingency of a cipher, orno number, inone or more of the columns, it. becomesinecessary'to -unset the ,9 pinfor every column in which any digit is written. The' means for:-accomplishing these various purposes are'not new in thepresentinventiom 'but'esince:the denominational computing .mecha nisrneis here illustrated as inter related to-thecoin counting nechanisinwhich adds: written mechanism during subtracting operations, a

comparatively full description of'the entire f computing mechanism willassist in a'clear.

understanding of the invention.

Referring to Fig. 5, it will be noted that the rock shafts 47, exceptthe and 9 shafts, in addition to-the arms 48 for engaging those linkageswhich correspond in position to the number of the key which operates theshaft, also have other bifurcated arms for engagement with wrist pins'onthe complementary linkages. On the '5 shaft the a-rm48 can be used to's'erve'the'purpose of an arm 50; and, as the complement of nine is ineffect zero, the 9 shaft needs no complementary connection. In Fig. 5,the setting shown is for subtraction. The shift between adding andsubtracting positions is" effected by means of a shaft bar 51 pivoted-at52 to the frame 53 and engaging alined notches 54C in each of theirocksha'ftsi47, so that when bar 51 is swung, all .the'shafts 47 are movedtogether longitudinally in their hearings in the frame. For swinging thebar 51, there is attached to it anarm 55 having a pin 56 at outerend'engaged between an arm 57 fixed on shaft 56 and an a'rm'58 loose onc this shaft, these arnisbeing yieldingly connected by a spring '59, andbeinglimited in their movement toward each other by a pin 57 on the arm5.7 and a toe 58 on the arm 58.1Normally arms 57 and 58 will movetogether with shaft 56 to throw the shifter,

:but In the event of a jam, to prevent injury,

"the arm.'58 ma remain behind while the spring 59 stretches. The shaft56 is rocked from the subtraction key 60 (see Fig. at),

when the latter is pressed, by means of a push bar 61 connected to anarm 62 fast to I a shaft 63,"to which is also fast a dog 64'for holdingthe subtraction bar 65 normally for ward against the actions of a spring66. The subtractionbar has a pin-and-slotengagement with an arm 67 fastto the shaft 56", so that when dog 64 is removed from its notch 68 inthe subtraction bar, the spring 66 by throwing the subtraction bar,rocks shaft 56 and causes the linkage conmotions to be shifted to theposition shown inFig. 5, in which the complementary linkages are shownin operative connection with a trip 70 normally held by spring 71 in thethe keys.

The setting of the 9 p1ns is effected when the subtraction bar 1s movedby the spring 66; and, to this end, (see Fig. 14).

there is pivoted at-69 to the subtraction bar mcnt raar'wardwith'thesubtraction bar, it engages and trips an arm 72 fast on a shaft 73 towhich a bail 74 is also fast. The bail 74" is thereby caused to strikesimultaneously all-of aseries of pin-setting and unsettmg plate 79,which causes the trip to berocked out of engagement with .the bail arm72, whereupon a coil spring 7 8 returns the latter to normal position,leaving all of the 9" pins'set. When presently the general.

operator which includes bar 80 is moved forward, and picks up thesubtraction bar to return" it to normal position, the spring 71 returnsthetrip to the position from which it was-forced by the stop 77. A; toe72" on lever 72, if-the latter has not been returned by spring 78, willbe struck by bar 80 to for:e lever 72 to Fig. 14 position.

At the time the 9 pins are set connections become effective to providealso for an extra step movement'of the units or cents pin-bearing rackbar and its computing wheei. The extent of movement of the rack bars 'torotate the associated computing wheels depends upon the particular pinsset up thereon, as stated above. These pins are engaged by the cross bar80 on the general operator 81, which is reciprocated in a manner to bedescribed, so that on its forward motion it engages the. set pins toforce or drive the pin-bearing rack bars forward an amountcorrespondingto the particular pins set up, and so that on its rearward motion itwill return the rack bars by engagement with fixed lugs 82, one of whichisprovided on each of the rack bars.

As will be seen by reference to Fig. 2, the cross bar 80 of the generaloperator has a uniformf frontedgeexcept for that portion which comesinto engagement with the set pins on the units or cents bar indicatedspecifically at 83. That is to say, the general operator cross bar 80has a piece 84 cut out of the frontedge thereof, which piece can attimes enter its socket 83, as in a nor-- mal adding operation, so thatthe units or cents pin-bearing rack bar will be given a movementcorresponding to the particular pin set up thereon, with the result thatidentical pins set up on all bars will cause the general operator todrive their bars identic-ally or, in other words, the front edge of thecut-out portion 84 will come into alinement with the front edge of thebody portion of the general operator cross bar 80.

For a subtracting operation, however, this cutout portion 84 is locatedforward with its front edge one step in'advance of the front edge of thegeneral operator cross bar 80, so that it will come into contact withwhatever pin happens to be set'on the units or cents bar 85 one stepprior to the engagement-with the front edge with'the correspondin'gpinon any of the other pin-bearmg rack bars. -To maintain this forwardplacement Offthfi' eut-out fportion .84, there is provided asupernumerary bar-86' corre-' sponding to. the other pin-bearing rackbars 36, with the exception that it is unprovided with a rack, inrthatit doesjnotrotate any computin -wheel"-directly,, and is unprovided'w'itThisgsu'p'ernumerary bar 86', however,- carries the out=out portion 84,-

softhat'it WiILreciprQcate-With the general operator cross bar .80. v

In "the. normal adding operation, the-cut outportion 84 will beovertaken by the gen-- eral :operator cross bar 1 80 before the frontedge of the latter-comes into engagement with any of; the set pins onthe pin-bearing rack-barsfat which timethe front edge of the cut-outportion 84' will be located in alinementwith'the front edge of'the crossbar 8 0,- sothatT-all the pin-bearing rack bars, will ibe ,givenn'o'vements corresponding exactly to: the pins set upthereon, At the end-1 of the forward 'strok'e of the general opera' torcrossbar" 80,-alu'g('not shown) on the supernumera'ry bar- 86, corresponding-to the lugs'82 thefpin' bearing bars, will be located one step to the rear of thelatter, so

thaton' the return movementiof the latter, the supernum'erarybar .86 andthe portion 84*carried' thereby will lag behind the cross bar- 80 onestep,'-u ntil the-latter overtakes it, whereby E'when the generaloperator cross .bar :80;-comes to its home position, the' front edgeofthebut-out portion 84.- will be located one step'jin advancecrossbar-180. Y

:As stated above; in the subtractingoperation is necessary to. maintain:the cut-out portion "84 in its advanced; position with resp'ecttoYthe-general operator cross'bar 8U.

For thispur pose, when the-9 pins areset by the bai1'74, a trigger 87pivotally'mounted on the supernumerary bar 86' iszfo rced down "from araised position out of the, path of the l'g'eneral'op'er'ator cross bar80,. to 'adepressed position {with ashoulder thereon inthe 'path of thefront *edgeof the general operator cross bar 89, bythe engagement ofthe-9 pin setting'bail 74:" with" an up- 87;"""-The up anddown-movements" of t wardly-extending finger 88'. on the trigaer etrigger 87 are limited, respectively,- by lugs seame whibhoverhangtheftopfledge of th ii ernumerary-barSG at t pp sides of'the pivotofthe' trigger 87;

It will-'thus-be. seen thatwhenythe 9 pins areset up for subtractingoperation, the. trigger 87 will at the same time be-depressed to bringa" shoulder thereon into the path-of the general operator cross bar 80,so that thefront edge ofthescut-out portion 84' carried bysupernuinjeiar bari 86,will' be maintained one step inadvance' oftheifro'nt of the front edge of the edge of the general operator crossbar :80, whereby it will come into engagement with the partieular pinWhiehhappensto beset up on theunits or cents bar 85. one step in advanceof the corresponding engagement ofthel front edge; with a correspondingpin set up on a-nyof the otherpin bearing rack bars36. This, then,givestothe units or eents Wheel a rotation one step in excess of: thatwhich it would receive to correspond;

with the particular-pinset up 11 its assoc'ij ated rack bar. Forexample-if Zero were subtracted 1n the cents orjun'its column, then the9 pin would rem i ithe units or cents-wheel would receiveazrotation notonly of nine-stepsbut one step-in ex cess thereof, so that it would berevolved ten steps 'or a complete revolution in :this 'deci;

mal system, whereby-31? would beicallied This unsetting or restoringconnection to some one of thelinkages 2L0,

also has an arm and wrist pin .con ion and 92 to a linkage93 similar tothe linkages 40 but-outside of the rock shaft'ffraine. Ea' ch ofthe 59?pin setting andfunsettinglevers 75, on its-reararm. has an upwardprojecting lug 9-L which, -;whenthepin bar onqvhi ch' it is mounted isset vforward its jaek; 23, is :broughtunder and in ialinementiwith thelinkage '93, so that-if any digitkeyiisthere after operated, thelowerreach Vof,linka-ge 93 is thrown-down against thelever 75,- so'gs'etforward, and rocks ithat ,lever to lift orunset the"-9- pin onthatbarvEach lever 7 5 has also a lower lug 95 Which by strikingthe top of itsbar 36limits the vrestoring move-.1

ment of the lever 7 The action of therock shafts 247 in unsetting a f9?pinis simultaneous with setting by the ,same shaft of any selected pinfor any other digit. When the nected from the linkage: 93.

The amount "having been eitheraddi'tion' or subtraction, the generaloperator bar '80 is actuated to move forwardthe rack bars- 36, and thusrotate thedialsthe distances corresponding to; settingsof the pins 37.Forthis' purpose the general operator is. provided on each side with farack 96.1 Meshing with eachrack 96, is'a. pinion, 97 supported on themachine frame,

" linkages 40 are set'fo r; addition by a shift of the rock. shafts 47,the latter are ..disconand meshing with each pinion is a segmental 'rack'98, both segmental racks 98 being fast to a cross shaft 99. Also fastto shaft 99' is an arm 103 carrying a handle 104 for rocking shaft 99backwardly or forwardly to throw the general operator one way or the toeach dial wheel, a wheel 105 having ten teeth, having several functions,the principal,

of which is to give to the dial to which it is attached a teps-carryingmovement from the next lower dial. Springdetents 106 engaging wheels105, hold the dials in true position.

a detent 107. Thedetents 107 are in the form of levers loosely mountedon a cross shaft 108; and each has, to the rear of shaft 108, a tooth109. Extending over all of the teeth 109,'but held normally out ofengagement with the latter by meansof a spring 113, is a bar or bail 110supported on arms 111 fast to a shaft 112. Also fast to shaft 112 is anarm 114 which, during the movement of the general operator, is held bythe spring 113 against a bar 115 secured to the left hand side of thegeneral operator. Bar 115 is turned up at 116 to serve asa cam forrocking the arm 114, and with it the shaft 112 and bar 110, when thegeneral operator, at the end of its forward movement, brings theupturned part 116 to the lever 114,; thus causing the bar 110 to strikethe teeth 109 and force the detents 107 between the teeth,

of the wheels 1055, locking the latter against .overthrow. Until lockedby the bar 1 10,

thejdetents 107 vibrate freely over the teeth of the wheels 105 as thegeneral operator moves forwardly.

The tens-carrying movement from one dial to the next higher is effectedon the return of the general operator as follows.

A One of the-racks 96 on thegenera-l operator meshes with a pinion 117which is loosely mounted on a stud on the machine frame and which alsomeshes with a pinion 118 having'aball and clutch connection 120 to ashaft 119, -to drive the latter-only on the return movement of thegeneral operator. Fast to shaft 119 are disks 121, one for each dial,andeach having a tooth 122 to mesh with one of a number of mutilatedgears 123 loose'ona countershaft 124. Each gear 123 has every third.tooth missing so that unless the gear is properly set, it cannotbereached To prevent overthrow of the dials by the racks 100, each wheel105 is also engaged-by and moved by the toothed disk 121 opposedthereto; The return movement of the general operator efi'ects onecomplete revolution of shaft 119, and consequently of all the disks 121.If therefore any gear 123 is set for engagement with its actuating toothon the opposing disk, the gear is given a partial rotation, which willcause one of three teeth on a disk 126, attached to the gear, to engageand advance one step, the opposing wheel 105 of one of the dials, thuscausing that dial to register an increase of one which is a carry overoften from the next lower dial. f

' Until ten is to be carried over from any dial the gear 123 for thatdial is in Fig. 1 position and cannot be moved by its disk I 121. Each:dial, however, has one tooth 127 on its periphery, which'after' a ninepoint movement of the dial by its pin bar, engages, 851 and givesone-ninth of a revolution to the opposing gear 123, thusbringing-a-tooth of the latter into position to be-engaged, onreturn ofthe general operator, by the tooth 122 on theiopposing' disk 121, whichlatterg'zo as above stated, gives the gear 123 a further movementsufficient to register, an increaseone on the next higher dial. Thedisks 121 are cutaway in front of the teeth 122. Undesired movement ofgears 123, which have not been set, or which having beenset have beenmoved the requisite distance on return movement of the carriage, isprevented when the uncut portions of i the peripheries of the disks 121enter the spaces where the teeth are missing on the gears. Tens-carryingmovements may be given to several dials during the same return movementof the general operator, and inorder:

that the tens-carrying maybe progressive from lower to higherdenominations, the teeth 122011 the disks 121 are arran ed spirallyaround the shaft 119, whereby t ey come into action successively insteadof si-' multaneously.

When thegeneral operator starts its return movement, the bar 110, andwith it the I detent levers 107, which have locked the .dials againstoverthrow, are releasedto permit' ofthe tens-carrymg operationjustdescribed. Itis however, desirable to assure the dials againsto\'*erthrow also inthe tens- -carrying operation, and for this purposethe detent levers 107 have arm's 130 terminating in cam surfaces. 131for engagement with segments'13'2, fast to shaft 119, and arrangedspirally around the shaft, so that after any tooth 122 on a disk hascompleted a tens carrying movement-of a dial, the proper segmentstrikesthe cam surface 131 ofrt-he de 125 tent levers with which itcooperates, thereby rocking that lever to throw it into lockingengagement with the wheel 105 of that dial, and temporarily holding itin such locking engagement. The forward and backward movements of thegeneral operator are limlatter, when the same have previously been 1 setfor subtraction by operation .of the subtractionkey. ,This isaccomplished at or near the end .of the forwardniovement of theoperati'onby means-of alug 137 (see Fig. 9-) on the subtraction barinthe ath; of'the operator-bar 80. X Thebar 80. onstrikingthelug 137,draws the subtraction bar forward against the tension "of spring 66until notch E68 registers with dog 64, whereupon the subtraction key.spring"61?.;snaps the dog into the notch; l. a I Among its otherfunctions, the general 0perator on its return'stroke, restores all ofthe setpins 37 to their normal raised positions, so

that they'will be ready to. accumulate a subsequent computation; Forthis purpose, there is provided on {the general operator, a pawl 138which is pivoted so: asto swing idly past an arml39- on a. rockrshaft140 during the forward motion ofthe "general operator; A spring 141however, returns this pawl 138 to its normal position, so that on thereturn stroke of the generaloperator, the pawl- 138 L pins37;'llhepin-restoring plate 1.43 is. sup

will act. as a cam'andswing the arm'139'upwardly thereby rocking theshaft14l0 and an arm 142' to engage and-raise av pin-restoring' plate-143,"which will raise all of the set portedfor parallel motion by meansof two pairs of bell cr'ank levers 144, connected for parallelmotionbyone or more links 145.

; The-ipinerestoring plate not only returns the setpinsx-37 butalsoengages a down wardly-projec'ting lug (not shown) on I the trigger87 which provides for the extra step movement of'the supernumerary bar86,

where-by the trigger 87,.ifthe previous operationwas, a subtracting one,will be re turnedto its'normal uppermost position corresponding to theremoval off-the shoulder thereon from: the path of, the general.operatorfcross barSO, whereby :themovement of the su-pernumerary bar'86 will no longer be one step: in advance of general operator cross f-Deh0mindzi0hal computing or counting t-mecha'nismr e been heretoforestated, thepres ent invention relates chiefly-to certain mecha- "nismwhich: although capable ofuse in many fields,'may advantageously combined with the accumulating or totalizing meclianis nnhereinbeforedescribed, as for in- 'sta'nce "n;n1aking up ,a, payroll, sothatthe yme each; =1ofselecteddenominations, such 'as ten,

mayknow; the number of pieces or dollars column must be a digit, and

largest pieceor measure used in the presents lators is comprised of'three dials sl ,'zitor units, tens and hundreds, respectively, each?carrying numbers 0 to '9 inclusive, whiohwao show. through a sightaperture in the casing The units-dial. ofleach of these indicators! hasa drive like that of dial 102 (see Fig. 1);}: from ra -rack 100 by meansofa pinion 101,130 which ithas a pawl and ratchetconnectio'n s a 101 andeachof the seven indicators has tens-carrying mechanism, likewisesimilar to; that shown'in Fig. 1, which connects the units dial withtheiten's dial, and the latter with the hundreds dial; so that eachof-the seven. indicators may therefore indicateamounts to 999i The racks100 for these seven indicators a refcarried by bars 151-, 152,; 153,154,155, 156 and 1 57 respectively,which resemble .the pin bars 36intheir action, in certain features oftheir construction,-hut 1 a -iwhich have certain peculiaritiespresently tobe described, 'Thesebars areset fromthe? tappet 19 inthe same manner that the bars 36 are set fromthe tappet 18; the bar 151 however being'the only one or these barswhich is set singly, the others being set tIwo ata time. It has eenpointed out that 1n thepar-I- ticu'lar embodiment of the invention-shown'105 in the drawings'the denominational compute;

'ing mechanism, comprising the various coin;

indicators, isdesigned-to accumulate the, def; nominational elements, asrepresented coins, of items not .greater than-$99.99, a1idI110 thattherefore no single itemgreater. than;- that'shou'ld be written when thecoin in Y catin device is used; An amount suchas this, aving but fourcolumn positions, calls for-the use of but four of the acks 23- coneg ltrolled by the. tappet 18, and likewisefo but four jacks ofcorresponding columnpo-j sitions, controlled by the tap-pet 19'. .jSinceany number Written in the lefthand or tens the ten dollar piece (viz.,coin or'bill yjist illustration of the invention, the numzbei o t tendollar bills called for when that .digit is 2 written is naturally thevalue of the==digit 5 written and registered in the tens ofdollarscolumn. Consequently the $10 bar 151- may 'be abar having ninepins, 158 representing respectlvely the nine digits, arranged and 1mounted exactly asin the case of the bar 180 1 without the five dollar.36, so that, when the bar 36 for that column is moved forwardly by thegeneral operator to register the amount of the digit, the bar .151 maybe moved the same distance to reg 19 for that column, should set onlythe out one fifty-cent piece.

$5 bar 152 but also the $1 bar 153.

In the following or third column from the left, the digit for which thecorresponding pin bar 36 is'set, calls for the registration of one, two,three or four dimes, with or withg The jack 23 controlled =by tappet 19for this column should therefore set not only the bar 154 but also the10 bar 155. i

In" the last or cents whim; any digit pin set upon the correspondingcolumn pin bar 36 calls for one, tw'o,'three "four "one cent pieceswit-li'or' without one five-cent piece. The jack 23 controlled by thetappet- 19 for the last column therefore sets both the 5 bar 156 and thel 'bar 157. Referring to Figs. 3 and 4, it will be seen that. the jackscontrolled by tappet 19 connect by means of links 27 with levers 160,

each ofwhich operates one of the four linkages 161,162,163and'164rsim-ilar to the linkages32. The linkage 161 has one lug165 engaging one arm of a bell crank 166, the other arm of which engagesa projection 167 on the $10 bar 151, so that when the linkage isactuated by its acks, it operates to set forward the bar 151 in the samemaner that the pin bars 36 are set forward. inkage 162 has twolugs168-and 169, the firstfof which engages a "bell. crank 170 to setthe $5 bar 152, and the second of which engages a bell crank 171 to setthe $1 bar 153. ;Linkage 163 has two lugs 172 and 173 for operating bellcranks 174 and 175 to set the 50 bar 154 and the 10 bar 155respectively, and linkage 164 also has two lugs 176 and 177 to operatebell cranks 178 and 179 to set 5 bar 156 and 1 bar 157 respectively.

The linkages40 (see Figs. 6, 10, 11, 12 and 13) which set the pins 37are continued over the bars 151 to 157 inclusive, and also serve to setthe pins, or their equivalents, on such of these bars as may have beenset forward by their acks, it beingmnderstood that the normal or unsetposition of these bars is such that the pins or equivalents thereof arenormally out of alinement with the linkages 40, as in the case of thebars 36.

The $10 bar 151 has nine pins 158 thereon amount $67.89.

mounted in the same manner as the pins 37, representlng multiples of tento be registered, according to the digit written in the tens column whenone of the number keys 2 is operated. As 'to the $5 bar 152, it has beenpointed out that not more than one five-dollar piece can be registered,whatever the digit written for that column.

,same is true of the bars 154 and 146, for

registering 50 and 5e pieces, respectively,

and since these three bars may therefore beidentical in structure, a,description of bar 152 will sufice for all three.

The bar (see Fig. 7) has pivoted thereto at 181, a trigger 182 havingthereon, in the 1 pin position, a lug 183normally held-out of the pathof the operator bar 80. Projecting upwardly from the trigger, in the 5pin position, is a finger 184. When bar 152 is set forward by its jack,finger 184 is brought-under the 5 linkage 40, and when the latter isdepressed, inthe adding operation, it strikes finger 184, rocking thetrigger to throw the lug 183 into the path of the operator bar 80.Finger 184 is turned the trigger 182 from the 5 key 2 is thereforeapparent. Its setting from the 6, 7, 8 and 9 keys 2 is by means of crossconnections between certain of the linkages 40, presently to bedescribed.

The bars 153, 155 and 157, which are for registering one dollar pieces,dimes and onecent pieces, being operable in conjunction with the bars152, 154 and 156 require but four-pins 185 in the 1," 2, 3 and 4 pinpositions. These pins'however, in addition to being operable from the 1,2,

3 and 4 keys 2 respectively, for regis tering amounts of one,.two, threeor four,

must also be operable, respectively, from the 6, 7, 8.and 9keys 2, toregister the one, two, three or four needed in addition to one five whenone of these latter keys 2 is depressed.

The cross connections between the linkages 40, for use in thedenominational section of the machine, will now be explained,

reference being had to Figs. 5, 8, 10, 11, 12,

5-- same distance with the general opera-tor.

When the carriage moves on one letter- 'sp'ace the jacks 23 for the nextsucceeding -column are operated and set forward the :proper column pinbar 36 and the'bars 152 and an arm 198 adapted to engage .wrist pin 199on the 3 linkage l; and (see Fig. 13) the 9 rock shaft 47 having an arm200 adapted to engage a wrist pin 201 on the 5 linkage, and an arm 202adapted to engage wrist pin 203 on the 4: linkage 4:0. Returning now tothe example $67.89, of

i "cross connections hereinafter explained be-' which the registering of6 and 7 has been explained, the typewriter carriage, when in the dimescolumn, sets forward'the rack bars 154;.and 155, with the result thatthe actuation of the 8 key sets the trigger 182 on the rack 1 torepresent one fiftycent piece, and at the same time the said 8 key setsthe one of the pins 185 which represents three dimes on the rack bar155. Analogously at the next or cents column, the typewriter carriagesets forward the rack bars 156 and .157, so that the actuation of the 9key sets the trigger 182 on the rack bar 156 and the pin representingfour cents onthe rack bar 157.

When the 5 key 2 is operated, as heretofore explained, no crossconnections between linkages 410 are required, since the trigger 182sets the lug 183 for registration of one in the $5, 50, or 5accumulators, Laccordingto the column in which 5 is written. When anykey 2 for a digit lower than five, is operated, no cross connectionsbetween linkages 40 are needed. Each linkage 40 sets its'respective pin87 on the pin bar 36, andalso the corresponding pin 185 1. ?'an d '153.If new the 6 key 2 is depressedbf f the'operative (ignoringfor themoment the'exa'mple given above), not only will the '---.6 linkage 10 beoperated to set the 6 ---'pin-(' n the pin 'bar 36 for registration of 1;-si-X on. theproper dial 102, but also the 5' "linkage 40 should beoperated to set lug 183 on her 152 for the registering of one '-'=$5piece in the $5 accumulator, and the 1 i *linkage 4O should be operatedto set the 1 pin on the $1 bar 153 for registration of $1 onlithefilaccumulator. It will be noted -gthat lif 6; 5 and 1'li-nkages are thus-operated, then in addition to the 6 pin, 5''-and 1 pins willincidentally be eaten the pin bar 36 which has been set forwardfbutthehighest, 01"6, pi-n will be j thonly 'eflective pin set on that bar, behan e-it :is the pin which will be engaged ibfy'f tlie operator bar '80.The same holds tri1e-a's to the bar 151 which will have set thereon apin representing the digit on the --key 2 depressed, although, by reasonof ".tween' the linkages 40, other ins will be 35 set on that. bar. Inorder that under these on the bar 153, 155 and 15 circunistances, the 6key 2 may operate When the general operator is drawn fornot only the 6linkage, but also the 5 Ward to complete a computation after the .-a. nd1 linkages, itwill be seen on referencesettings have been made, itdrives the bars 7 f i-Fig'. 10, that 6 rock shaft. 47 18 pro- 151 to15-7 inclusive, to accumulate or add .40 vided with an arm 188 adaptedto engage, in their respective registers or counters acwhen the partsare set for addition, a wrist cording to'the settings. The tens-carryingT151 189 on the 5 linkage 40, and isalso operation is effected in eachof the seven aprovided with a similar arm 1% to engage denominationalaccumulators or counters on 1 anWl friSt' pin 191 on the 1 linkage-.40.It the return of. the general operator, in the will-b'e'noted that arms188 and 190 are not same manner as i th di dditi f bifurcated like thearm 48, but engage their amounts in theadding and subtracting ac-'ins-f-rom one side only, 0 l1 gh cumulator having the dials 102. Theshaft r-f6*--"key will operate 5 and 1 linkages 119 which carries" theone-toothed carry- =-40,' nither 5 nor 1 keys 2 111 p rat over drivedisks 121, already described, also -"-6 -i li nkage- 10. carries two ofthese disks for each of the ""iN'ow; returning to the example $67.89 se--seven denominational counters. Loosely lectedf above, for a similarpurpose (see Fig. mounted on a counter-shaft 205, which is in "j -il-)'-the'f7 rock shaft 47 has'an arm 192 effect a "continuation of shaft 124,are two adapted to" engage a wrist pin 193 on the of the mutilated carryover gears 123 for "5 manages), and an arm 194 adapted to each of theseven accumulators. These gears engagela wrist'pin 195 on the2 linkageare set by turning them one step, as before emf-whereby the digit 7vwhen written in described, each by a single tooth on the dials the$1"colu'mn, for instance, may be regis 150, when the latter, .on theforward stroke F tered as one five dollar piece plus two one of theoperator, move beyond the 9 ex- Wannapieces on the and the $1accumuhibitingposition; and each gear 123, when l 5 flit ors',respectively. The principle (again so set, is further turned, on theeneral ignoring momentarily the above-mentioned operator returnmovement, by the disk 121 example) is the same when writing the whichmeshes with it, and partially rotates digits 8 and 9; the 8 rock shaft47 a three-tootheddlsk 1.25 fastthereto,so that 65 having an arm 196(see Fig. 12) adapted to the advanced tooth of the latter Wlll engageand give Ia one-step movement to a wheel 105 "'fast to thedial of the.denomination next above "'that of the dialby which such gear .123 wasgiven its initial setting, ,"1 {Th "dials 150, like the dials102,.register movement "in'ion'e direction only, and so have apawl-'and-ratchet' connectionj 101 to thelgears' 101, which are turned,on theforward movement of the operator; by racks 100 on the sevenregisterbars151 to 157 in.-

clusive; I Likewise the disks, 121 of these seyeni-registerspnly rotateonf'the return- 'niovement of the operator, because they are fast on theshaft 119, which latter is driven by the ball and clutch connection,heretofore *overtlii ow of the ,dials during the tens-'c'arryingoperation whenv the'operator re turns,;fla s;.glikewisealready described. All

. of the wheels 105 of the seven denominational-registers-are held intrue position by spring'detents 106. g I i The seven denominationregisters are all 'alike,:so far as their dials'are concerned, and

diifer. .fromthe addingwregister or accumulator which hasthedials.102,.main'ly in that.

in the latter each dial 102 is adapted to be separately driven from apin bar 36, whereas in the denominational registers only the right-handdial 150 ofeach register is driven from a bar; all movements of theother dials 150 in each register being simply tens-carryin'g movements,this being so, because never more than nine units of coins or money areadded at once. v I

1 When the general operator bar 80 returns, it strikesshoulders 8201ieachwof the, bars 151 to 157 and carries these bars back to normalposition where they are held by spring fingers 41 (see Fig. 7) againstthe plate 4 1, which. also has grooves at .41, to serve as. guides forthe bars. On the return movement of the operator all pins. 158 andtriggers 182 on the bars l5l to 157 are unset and returned to normalposition by plates 143, similarto and which may be integral with theplate 143 under the pin bars 36,

each lifted by an arm 142 fast to shaft-1 10, which .is rocked by, thetrip 138. Bell cranks 144 and link .145, already mentioned, maintain theplates horizontal. A spring detent .206 (see Fig. 7 attached toeach of.the bars 152, 154 and 156, by engagement with a notch 20.? in thetrigger 182 on that bar,

"holds the trigge in place wheni't is depressed, and, byen'gagem'entwith a second m te}; 208 in the trigger, holds the-latter in place whenelevated. A bent finger 209 .on

the trigger, by striking the top of the bar determlnes the upward throwof thetriggei'. It will be noted as one of the advantages of thepresent. invention that it proyides means whereby a pay roll can bewritten out on the typewriter, and the pay items thereof be accumulatedor added without interferpaper) on both simultaneously. The presentinvention therefore furnishes a check on the work of the payrollclerk,'and at'the same time enables him to locate his own errorsrapidly, because if an error has been made in filling the pay envelops,there will beeither a shortage or .a suplus of'sonie one of the'coins orbills. The operative may prove the accuracy of transcribing the total bysubtracting it out of the register in the usual way, andthen the coinregisters may be brought to zero,"after having made a .memorandum of thenumbers shown thereon.

. It has been stated that in the machine as shown in the drawings, thedenominational registers are not designed to be operated whensubtraction is being performed. They are therefore rendered inoperativeby the following means. East to the shaft 56?;

which is rocked to shift the linkages 40 from adding to subtractingposition when the subtraction key is'pressed, are two arms 210 and 211from which depend link 212 and 213, on the lower ends of which a bar 211is carried. Each of the bars 151-to 157 inclusire, is held at, itsshoulder 82 to the bar 214- by a hook 215, so that when shaft 56 isrocked to effect the shift for subtraction. the bars 151 to 157 are allswung upwardly from ,Fig. 7 to Fig. 8 position, a distance sufficient totakethe pro ections 167 out of reach of the bell cranks 170, etc., bywhich theyfare set from the jacks 23. The jacks 23 therefore becomeineffective to set the denominational bars when the machine is set forsub.-

traction. When the general operator,. .t ward the. end' of its forwardstroke, returns the subtraction bar to normal position, and thus,through the arm 67, rocks shaft 56fbo shift the linkages 40 again toadding posi' tion, it again-depresses the bar 211 and. by

reason of the hooks 215, alsothe bars 151 to 157, so that thedenominational'or' coin counting mechanism is again effective.

Inca-Se of error, any settings of the pins on the bars 36 and bars 151to "l57'inclusive, may be" erased at wil1,'before the general operatoris actuated, by means of an error key 220 (see Fig. '15). This key isheld in norm'al position by .a spring 221, and is returned to normalposition by this spring .after each depression,

"222 to a pin 222 at the tached a spring .223, the other end ofwhich Itcarries an arm end of which is atis attached to a pin' 224'on a lever225 pivmoted -at-226, which when rocked, engages V and lifts tings,Pressure on -.turned tonormal 230. A roller'231 the plates 143 to eraseall pin setthe key 220 has no efl'cct on the lever 225 unt'l the pin 222strikes a lever 228, pivoted at 229 and .held in, and reposition by acoil spring at the upper end of the .-lever 228 holds lever 225 againstthe ten sion-of spring 223 when key 220 is, depressed,

until keyshaft 227 strikes and rockslever 228,. removing the roller231-from the lever r 225.1The acoumulated'forceofspring 223 thereuponsnaps lever 225 to lift the plates i. 143 and unset the pins.

I spring 221 returns the key 220 to normal position, strikes pin 224 7turns the latter. to normal. position, thus per- Y 'mitting spring 230to throw roller 231 again 26 under the end of lever 225.

returned to zero position atwill.

on lever 225 and rethedials, m be It has been stated that all For thispurpose there is a zero key 233 mounted on -.a shaft 234- embraced by acoil spring 235 v 30 which holds it in normal position after each 1operation. The shaft 234, when the-key is pressed, strikes a lever 236,which invturn j strikes and rocks a trigger 237 pivoted at 1 238 on azero bar239, throwing the rear end f general operator bar 80. Astop241'on the ntrigger 237, on striking the general operator bar 80 limitsthe throw of the trigger. If,

240 of the trigger 237 into the path of the Whenthe trigger is thus setthe, bar 80 moves jforwardly, it carries with it. the zero bar 239. Thezero bar carries a rack 242 meshing -w1th v .a pinion 243, connected bya ball clutch 244 with the dial'shaft 250,-so ,as to p1ck up and revolvethe shaft. when moved .forwardly,

without turning it, however, when moved 1 rearwardly. A disk 245 fast toshaft 250 has a-notch 246 en e a (see Fig. 16) to hold the shaftstationary stroke of the gaged by a spring detent 247 while the dialsturn thereon, in the registering operation. Ball clutches 248 connectingeach dial to the shaft 250 permit the dials to be turned freely on theshaft 250 when rotated by the pinions '101' on the forward eneraloperator. On the return stroke 0% the operator, the dials are held bythedetents, 106 against movement,

while the pinions 101, to which they have pawl-and-ratch'et connections,rotate back- "Wardly with the racks 100; the shaft 250. beingstationaryduring both theforward and rearward movement of the general opcrater.When shaft 250 'is turned on the forward movement of the 'zero bar, itpicks up and carries with it, by means of clutches 248, all ofthe dials150. The forward ter therefore reads 990 general operator starts its rWithin coil spring 223 is loosely held a pin 232 which, when manypurposes. :It is .to' the computation of measures; in the I With itsimprovements may Y selectively and simultaneously bringin actuatingdevice of said totalizer an an throw a the rack 242 a the position,oftlle pockets 251 for the balls ofthe ball clutches 248 are such/ as tobringfthe hundreds and tens column dials in each of'the seven registersor coin-counters to position. when they indicate the number 9 Theockets'252 for the clutches 248 of theu'nits ial of each coin-register,however, are so set units dials are-picked u by the shaft 250 one-stepin advance of t e other dials, and

are therefore'brought to zero position on this movement of the zerobar.- Ea'ch coin-regisat the time the eturn movement,

with the tens-carrying gears l23 set to effect a carry-over" operationas-the general operator returns, so that at the end of the returnmovement of the latter, the dials 150 register 000 by the generaloperator whenthe latter reaches the. shoulder 82 thereonj but clutch244does not pick up the shaft v250 on this movement. The same zero bar239 may,by

making the shaft 250'integral with the shaft which carries-the dials'102,in'the same manner, return all of the latter to read 999999990so'that after the return movement of the general operator all dials 102and 105 Will read 0 7 The invention has been described in connectionwitha typewriter, and in connection with a'computing mechanism-of aparticular character. It-is obvious, however, that that the w The zerobar is returned I many features of itmay be presented'in" many forms andadvantageously used for not limited in scope United States or otherdecimal currency systems, or to currency measures at all.

Neither'is it limitedinscope to a form in claim f 1. In a computingmachine, the combination with a totalizer-for adding numbers, asexpressed by their digits, and indicating their sum, of a plurality ofelement counters for separately addin numbers of'elements of difl'erent'selecte denominations from which amounts represented by saidfirstmentioned numbers may bemade up, settable actuating devices for,said totalizer, a settable actuating-device for each of said oount ers,key-controlled setting mechanism, common' to all said actuating devicesbut normally ineffective to'set-the same, means for an

